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A fault-oriented safety dynamic acquisition circuit and a fault-oriented safety device

A technology that guides safety and collects circuits. It is applied in the direction of logic circuits using optoelectronic devices, logic circuits using specific components, etc., which can solve problems such as lack of security and achieve the effect of improving safety.

Inactive Publication Date: 2018-07-31
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention provides a fail-safe dynamic acquisition circuit and a fail-safe device, so as to improve the problem that the fault of the circuit in the prior art will lead to different states, resulting in the problem that the safety cannot be guaranteed

Method used

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  • A fault-oriented safety dynamic acquisition circuit and a fault-oriented safety device
  • A fault-oriented safety dynamic acquisition circuit and a fault-oriented safety device
  • A fault-oriented safety dynamic acquisition circuit and a fault-oriented safety device

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Embodiment Construction

[0025] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0026] refer to figure 2 , The present invention provides a fail-safe dynamic acquisition circuit, including: a relay contact unit 100 , an optical coupling unit 200 , a pulse input unit 300 and a signal acquisition unit 400 . The optical coupling unit 200 includes a first opto-coupling sub-unit 210 and a second opto-coupling sub-unit 220 . The first photocoupling subunit 210 is connected to the second photocoupling subunit 220, the relay contact unit 100 is connected to the photocoupling unit 200, and the pulse input unit 300 is connected to the first photocoupling subunit 210, and the signal acquisition unit 400 is connected to the second photocoupling subunit 220.

[0027] In the first specific embodiment provided by the present invention, refer to figure 2 , the pulse input unit 300 is connected to the inp...

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Abstract

The invention provides a fault-oriented and safe dynamic acquisition circuit, which includes: a relay contact unit, an optical coupling unit, a pulse input unit and a signal acquisition unit. The light coupling unit includes a first photocoupling subunit and a second photocoupling subunit. The first photocoupling subunit is connected to the second photocoupling subunit, the relay contact unit is connected to the photocoupling unit, the pulse input unit is connected to the first photocoupling subunit, and the signal The collection unit is connected with the second photoelectric coupling sub-unit. The invention also provides a fault-guided safety device for judging the working state of the relay contact, which solves the technical problem of uncertain circuit fault-guided state in the prior art.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a fault-guided safety dynamic acquisition circuit and a fault-guided safety device. Background technique [0002] In the operation of rail transit, the safety and reliability of the system are extremely important, especially with the rapid development of high-speed railways, the reliability of signal equipment will directly affect the safety of rail transit, so the safety and reliability control of signal equipment is of great importance of paramount importance. In order to ensure safety, the control of signal equipment must meet the principle of failure-oriented safety. [0003] The principle of fault-oriented safety is specifically used in rail transit to judge the state of the signal by collecting the contact state of the relay. When one or more electronic components in the collection circuit are damaged, the fault-oriented safety mechanism must be satisfied to ensure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K19/14
Inventor 孙辉
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD